DNA Double Helix - Image Index A double helix structure, characteristic of DNA. The molecule is composed of two complementary strands twisted together in a spiral fashion. Each strand consists of nucleotides, with sugar molecules and phosphate groups forming the backbone. Adenine (A) pairs with thymine (T), while guanine (G) pairs with cytosine (C). This pairing ensures that one strand can be used as a template for creating a complementary strand during replication. The image highlights the intricate structure of DNA, showcasing its twisted and coiled nature.
